CVE-2026-53319

In the Linux kernel, the following vulnerability has been resolved: blk-wbt: remove WARN_ON_ONCE from wbt_init_enable_default() wbt_init_enable_default() uses WARN_ON_ONCE to check for failures from wbt_alloc() and wbt_init(). However, both are expected failure paths: - wbt_alloc() can return NULL under memory pressure (-ENOMEM) - wbt_init() can fail with -EBUSY if wbt is already registered syzbot triggers this by injecting memory allocation failures during MTD partition creation via ioctl(BLKPG), causing a spurious warning. wbt_init_enable_default() is a best-effort initialization called from blk_register_queue() with a void return type. Failure simply means the disk operates without writeback throttling, which is harmless. Replace WARN_ON_ONCE with plain if-checks, consistent with how wbt_set_lat() in the same file already handles these failures. Add a pr_warn() for the wbt_init() failure to retain diagnostic information without triggering a full stack trace.

• CWE-617

• https://git.kernel.org/stable/c/e9b004ff83067cdf96774b45aea4b239ace99a2fPatch
• https://git.kernel.org/stable/c/fd7a982657077469802594a5165bc30b9a55af70Patch

Published

Jun 26, 2026

Last Modified

Jul 6, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-53313In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53314In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53315In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53316In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53317In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53318In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-5332A vulnerability was identified in Xiaopi Panel 1.0.0. This v…6.1
• CVE-2026-53320In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53321In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53322In the Linux kernel, the following vulnerability has been re…8.8
• CVE-2026-53323In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53324In the Linux kernel, the following vulnerability has been re…5.5